356         CONTRIBUTIONS   TO   ECONOMIC   GEOLOGY,   1907,   PART   II. 
Locality  No.  5:  Toward  the  northeast  part  of  T.  35  N.,  R.  8  W.,  the 
coal  beds  of  the  Mesaverde  apparently  thin  suddenly  and  disappear. 
However,  the  last  bed  observed  in  passing  eastward  along  the  outcrop 
of  the  Mesaverde  shows  a  thickness  of  more  than  6  feet.  The  section 
was  measured  at  a  prospect  just  north  of  the  Durango  wagon  road, 
in  the  southwest  part  of  sec.  3,  T.  35  N.,  R.8W.: 
Section  of  Mesaverde  coal  bed  in  sec.  3,  T.  35  N.,  R.  8  W.  (No.  5). 
Shale,  sandy.                                                                                             Ft.  in. 
Coal • 4 
Shale 3 
Coal 6 
Shale 2 
Coal 2 
Shale. 
6  11 
It  is  the  writer's  opinion  that  the  bed  shown  above  represents  a 
local  thickening. 
LARAMIE  COAL  BEDS. 
Locality  No.  6:  In  the  Laramie  of  the  Florida  River  district  there 
are  two  important  coal  beds  in  the  shales  and  thin  sandstones  imme- 
diately above  the  basal  sandstone.  These  coal  beds  are  usually  made 
up  of  thin  benches  of  coal  separated  by  shale  partings.  They  are 
exposed  at  several  places  in  the  southern  part  of  sec.  9,  T.  35  N., 
R.  8  W.,  at  which  the  following  section  was  measured  by  Mr.  TafT: 
Section  of  coal  bed  of  the  upper  Laramie  in  sec.  9,  T.  35  N.,  R.  8  W.  (No.  6). 
Sandstone.  Ft. 
Coal 8 
Shale 4      6 
Coal 2 
Shale,  carbonaceous.  
14       6 
Locality  No.  7 :  Near  the  southeast  corner  of  sec.  9,  T.  35  N.,  R.  8  W., 
the  lower  coal  bed  of  the  Laramie  is  exposed  in  natural  outcrop.  The 
section  here  furnished  by  Mr.  TafT  is  as  follows: 
Section  of  coal  bed  of  the  lower  Laramie  in  sec.  9,  T.  35  N.,  R.  8  W.  (No.  7). 
Shale.  Ft.     in. 
Coal 2      6 
Shale 3 
Coal 2 
Shale 1      6 
Coal 6 
Shale 1 
Coal 5 
Shale.  
21 
